I'm similar to you--my job is akin to reception or administrative work, where a lot of the time I'm "engaged to wait". I don't have a significant other or any kids to worry about, so my off-work time is mine to do with as I please. While I'm waiting on tags, I'll also be doing things like playing video games or watching Youtube, so it's hard to calculate exact amounts of time.

But I'm almost always around, unless I'm out doing something in particular.